CN217715828U - Lithium fluoride microwave drying device - Google Patents
Lithium fluoride microwave drying device Download PDFInfo
- Publication number
- CN217715828U CN217715828U CN202221586320.6U CN202221586320U CN217715828U CN 217715828 U CN217715828 U CN 217715828U CN 202221586320 U CN202221586320 U CN 202221586320U CN 217715828 U CN217715828 U CN 217715828U
- Authority
- CN
- China
- Prior art keywords
- microwave
- temperature drying
- drying oven
- lithium fluoride
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
The utility model discloses a lithium fluoride microwave drying device, which comprises a protective cover, wherein the middle part of the protective cover is provided with a rack platform, the upper end of the rack platform is provided with a microwave low-temperature drying oven, and the lower end of the rack platform is provided with a microwave high-temperature drying oven; the right side of the microwave low-temperature drying oven is provided with a first feeding mechanism, the first feeding mechanism comprises a feeding hopper and a first material distributor, the left side of the microwave low-temperature drying oven is provided with a middle connecting hopper, and the microwave low-temperature drying oven is connected with a moisture discharging system; the right side of the microwave high-temperature drying oven is provided with a material receiving bin, the left side of the microwave high-temperature drying oven is provided with a second feeding mechanism, and the second feeding mechanism comprises a double-roll crusher and a vibrating material distributor. The utility model discloses overall structure designs compactly, and is rationally distributed, and area is little, is about 1/2 ~ 1/3 of traditional drying equipment. Owing to adopt advanced microwave heating technique, under the equal output, the utility model discloses more traditional drying device is energy-conserving about 30% and environmental protection, and the time of spending is only traditional drying device 1/3 ~ 1/5.
Description
Technical Field
The utility model relates to a lithium fluoride drying device's technical field relates to a lithium fluoride microwave drying device particularly.
Background
Lithium fluoride is an important inorganic fluoride and is widely applied to the fields of glass, ceramics, communication optical fibers, lithium batteries and the like. Before processing, the requirement on the moisture content is strict, namely PPM level, and generally the requirement is below 100PPM. Therefore, the lithium fluoride drying device is the key point for ensuring that the moisture content of the product is uniformly lower than 100ppm and preventing the product from agglomerating.
The traditional drying modes such as a rotary kiln, a dynamic drying furnace, a belt type drying kiln and the like have the defects of high energy consumption, low efficiency, large tail gas dust amount, large equipment floor area, nonuniform drying and dehydration, agglomeration, difficulty in ensuring the product quality and the like. Microwave is a highly efficient energy source known as "the second group of human flames". The microwave changes the random distribution state of the polar molecules in the material into ordered arrangement, and the continuous movement and the mutual friction generate heat, so that the inside and the outside of the material are synchronously heated, and the microwave heating device has the advantages of high microwave heating speed, uniform heating, energy conservation, high efficiency, cleanness and sanitation. I developed a new lithium fluoride drying device by combining the microwave technology.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem among the correlation technique, the utility model provides a lithium fluoride microwave drying device can solve above-mentioned problem.
In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:
a lithium fluoride microwave drying device comprises a shield, wherein a rack platform is arranged in the middle of the shield, a microwave low-temperature drying oven is arranged at the upper end of the rack platform, and a microwave high-temperature drying oven is arranged at the lower end of the rack platform; the right side of the microwave low-temperature drying oven is provided with a first feeding mechanism, the first feeding mechanism comprises a feeding hopper and a first material distributor, the left side of the microwave low-temperature drying oven is provided with a middle connecting hopper, and the microwave low-temperature drying oven is connected with a moisture exhaust system; the right side of the microwave high-temperature drying oven is provided with a material receiving bin, the left side of the microwave high-temperature drying oven is provided with a second feeding mechanism, the second feeding mechanism comprises a double-roll crusher and a vibrating material distributor, and the microwave high-temperature drying oven is connected with an air supplementing system and a hot air circulating system; the double-roll crusher is positioned below the middle connecting hopper, the microwave low-temperature drying oven and the microwave high-temperature drying oven both adopt conveying belts to convey lithium fluoride, and the lower end of the rack platform is also provided with a control electric cabinet.
Furthermore, a filter press is arranged above the feeding hopper.
Further, the conveyer belt of the microwave low-temperature drying oven is a polytetrafluoroethylene belt with skirt edges at two sides, the conveyer belt of the microwave high-temperature drying oven is a polytetrafluoroethylene belt, a steel belt or a high-temperature-resistant non-metal belt with skirt edges at two sides, the outer wall of the microwave high-temperature drying oven is provided with a heat insulation layer, microwave suppressors are arranged at the input end and the output end of the microwave low-temperature drying oven and the microwave high-temperature drying oven, microwave generators are arranged on oven bodies of the microwave low-temperature drying oven and the microwave high-temperature drying oven, the microwave generators are connected with a water circulation system, and the microwave generators provide electric energy through a fully-sealed switching power supply.
Furthermore, the material receiving bin is a closed bin, cold dry gas is introduced into the bin of the material receiving bin for sealing, and the cold dry gas is air or nitrogen.
Furthermore, the left side of the air supplementing system is sequentially connected with a first high-efficiency filter, a first electric heater and a heat exchanger, and the right side of the hot air circulating system is sequentially connected with a second high-efficiency filter and a second electric heater.
Furthermore, one end of the heat exchanger is communicated with a moisture exhaust system, the output tail end of the moisture exhaust system is provided with a dust remover, and the dust remover is positioned outside the shield.
Furthermore, a crawling ladder and a safety barrier are arranged on the rack platform.
A lithium fluoride microwave drying method comprises the following steps: s1, carrying out pressure filtration on a lithium fluoride solution through the pressure filter to obtain a lithium fluoride filter cake with the water content of 10-20%, conveying the lithium fluoride filter cake to the feeding hopper through a conveyer, scattering the lithium fluoride filter cake through the distributing machine, and uniformly distributing the lithium fluoride filter cake on a conveying belt of the microwave low-temperature drying furnace; s2, sending the scattered lithium fluoride filter cake to the microwave low-temperature drying oven for drying until the water content is less than 1%, and dehumidifying through the dehumidifying system in the drying process of the microwave low-temperature drying oven; s3, feeding the scattered lithium fluoride filter cake into the intermediate connecting hopper, crushing the lithium fluoride filter cake into lithium fluoride powder by the double-roller crusher, and uniformly distributing the lithium fluoride powder onto a conveying belt of the microwave high-temperature drying furnace by the vibrating distributor; s4, conveying the lithium fluoride powder to the microwave high-temperature drying oven for further drying until the water content is less than 100ppm, and heating and dehumidifying through the air supplement system and the hot air circulation system in the drying process of the microwave high-temperature drying oven; and S5, the deeply dried lithium fluoride powder enters the receiving bin, is sealed and stored by the cold dry gas and is conveyed to a finished product bin.
Further, the drying temperature of the microwave low-temperature drying oven is 80-150 ℃, and the drying temperature of the microwave high-temperature drying oven is 200-350 ℃; and a plurality of microwave dielectric ceramic plates are arranged on two sides of the microwave low-temperature drying oven and the microwave high-temperature drying oven.
The utility model has the advantages that: the utility model discloses overall structure designs compactly, and is rationally distributed, and area is little, is about 1/2 ~ 1/3 of traditional drying equipment. Owing to adopt advanced microwave heating technique, under the equal output, the utility model discloses more traditional drying device is energy-conserving about 30% and environmental protection, and the time of spending is only traditional drying device 1/3 ~ 1/5.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a front view of a lithium fluoride microwave drying device according to an embodiment of the present invention;
fig. 2 is a top view of a lithium fluoride microwave drying device according to an embodiment of the present invention;
fig. 3 is a top view of a lower end structure of a rack platform according to an embodiment of the present invention;
fig. 4 is a left side view of a lithium fluoride microwave drying device according to an embodiment of the present invention;
fig. 5 is a flow chart of the lithium fluoride microwave drying process according to the embodiment of the present invention.
In the figure:
1. feeding a hopper; 2. a first material distributor; 3. a microwave low-temperature drying oven; 4. microwave high-temperature drying oven; 5. a moisture removal system; 6. the middle is connected with the hopper; 7. a double-roll crusher; 8. a vibrating distributor; 9. a dust remover; 10. a heat exchanger; 11. a first electric heater; 12. a first high efficiency filter; 13. a wind supplementing system; 14. a hot air circulating system; 15. controlling the electric cabinet; 16. a rack platform; 17. a heat-insulating layer; 18. a material receiving bin; 19. a water circulation system; 20. a shield; 21. a filter press; 22. a conveyor; 23. a second high efficiency filter; 24. a second electric heater.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
As shown in fig. 1-5, the lithium fluoride microwave drying device according to the embodiment of the present invention comprises a protective cover 20, wherein a rack platform 16 is disposed in the middle of the protective cover 20, a microwave low-temperature drying oven 3 is disposed at the upper end of the rack platform 16, and a microwave high-temperature drying oven 4 is disposed at the lower end of the rack platform 16; a first feeding mechanism is arranged on the right side of the microwave low-temperature drying oven 3 and comprises a feeding hopper 1 and a first material distributor 2, a middle connecting hopper 6 is arranged on the left side of the microwave low-temperature drying oven 3, and the microwave low-temperature drying oven 3 is connected with a dehumidifying system 5; a material receiving bin 18 is arranged on the right side of the microwave high-temperature drying oven 4, a second feeding mechanism is arranged on the left side of the microwave high-temperature drying oven 4, the second feeding mechanism comprises a double-roll crusher 7 and a vibrating distributor 8, and the microwave high-temperature drying oven 4 is connected with an air supplementing system 13 and a hot air circulating system 14; the double-roll crusher 7 is positioned below the middle joining hopper 6, the microwave low-temperature drying oven 3 and the microwave high-temperature drying oven 4 both adopt conveying belts to convey lithium fluoride, and the lower end of the rack platform 16 is also provided with a control electric cabinet 15.
In one embodiment of the present invention, the microwave low-temperature drying oven 3 is disposed above the microwave high-temperature drying oven 4, and is disposed in two layers, and the middle is separated by the rack platform 16. The layout structure is compact, the occupied area is small and is about 1/2-1/3 of that of the traditional drying equipment, and the whole device is covered by the shield 20 to form a relatively sealed environment. The frame platform 16 is designed with a ladder for people to go up and down. Safety guardrails are further designed around the upper layer of the rack platform 16.
In one embodiment of the present invention, the dehumidifying system 5 sucks the purified air from the microwave low-temperature drying oven 3, discharges the air from the other end of the oven, discharges a large amount of moisture from the outside of the hood 20, and sets the dust collector 9 at the output end of the dehumidifying system 5 for preventing environmental pollution to perform dust collection.
The utility model provides an in one embodiment, the furnace body both sides distribution of microwave low temperature drying oven 3, microwave high temperature drying oven 4 has several microwave generator, can improve the temperature homogeneity in the stove, for the stability of further guaranteeing the internal temperature of microwave high temperature drying oven 4 furnace, sets up the heat preservation at microwave high temperature drying oven 4 furnace body outer wall.
The utility model provides an in one embodiment, all be equipped with microwave generator in microwave low temperature drying oven 3, the interior of microwave high temperature drying oven 4's the stove, for its work safety and stability, need connect water circulating system, cool off through the circulating water, simultaneously in order to prevent the potential safety hazard that the microwave leakage produced, need set up the microwave suppressor at microwave low temperature drying oven 3, microwave high temperature drying oven 4 input and output.
The utility model provides an in one embodiment, the normal atmospheric temperature air in the workshop is preheated through heat exchanger 10 with mend wind system 13 and then gets into first electric heater 11 heating, filters through first high efficiency filter 12 again, gets into microwave high temperature drying oven 4 and is used for the heating material. Meanwhile, the fan extracts part of the damp and hot air from the microwave high-temperature drying oven 4, and the damp and hot air is discharged after heat exchange of the heat exchanger 10 (the normal temperature air is preheated through the damp and hot air, so that the utilization rate of energy is improved). Meanwhile, the hot air circulating system 14 sends the hot air in the microwave high-temperature drying oven 4 into the second electric heater 24 for reheating, and then the hot air is filtered by the second high-efficiency filter 23 and enters the microwave high-temperature drying oven 4 again, so that the heating temperature is ensured to be stable, and the process is repeated.
In one embodiment of the utility model, connect to let in the cold dry gas seal in the material storehouse 18 and keep apart with the outside air, prevent that the lithium fluoride powder secondary in the storehouse from absorbing water and weing.
When the device is used specifically, the water content of the lithium fluoride blocky filter cake pressed out from the filter press 21 is 10% -20%, the lithium fluoride blocky filter cake is scattered by the first material distributor 2 and then uniformly spread on a conveying belt of the microwave low-temperature drying oven 3, when the lithium fluoride blocky filter cake passes through the microwave low-temperature drying oven 3, the temperature of the material is rapidly raised after the material absorbs microwaves, and the moisture is vaporized and then discharged from the moisture discharging system 5. After the material passes through a microwave low-temperature drying furnace 3, the water content is less than 1 percent. The lithium fluoride after being primarily dried by the microwave low-temperature drying oven 3 is stripped from the conveying belt, enters the double-roller crusher 7 through the middle connecting hopper 6, is crushed into powder, then enters the vibrating distributor 8 at the lower end of the roller crusher 7, and is uniformly distributed on the conveying belt of the microwave high-temperature drying oven 4 for further deep dehydration. The material is dried by a microwave high-temperature drying oven 4 until the water content is less than 100ppm. And (3) drying the final powder, feeding the dried final powder into a closed material receiving bin 18, and introducing cold dry gas into the bin to seal the bin and isolate the cold dry gas from the outside air so as to prevent the lithium fluoride powder from absorbing moisture for the second time. The dried product is transferred to a finished product bin through a pneumatic conveying device butted with the material receiving bin 18 and stored as a finished product.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a lithium fluoride microwave drying device which characterized in that: the microwave drying device comprises a shield (20), wherein a rack platform (16) is arranged in the middle of the shield (20), a microwave low-temperature drying oven (3) is arranged at the upper end of the rack platform (16), and a microwave high-temperature drying oven (4) is arranged at the lower end of the rack platform (16); a first feeding mechanism is arranged on the right side of the microwave low-temperature drying oven (3), the first feeding mechanism comprises a feeding hopper (1) and a first distributing machine (2), a middle connecting hopper (6) is arranged on the left side of the microwave low-temperature drying oven (3), and the microwave low-temperature drying oven (3) is connected with a dehumidifying system (5); a material receiving bin (18) is arranged on the right side of the microwave high-temperature drying oven (4), a second feeding mechanism is arranged on the left side of the microwave high-temperature drying oven (4), the second feeding mechanism comprises a double-roll crusher (7) and a vibrating distributor (8), and the microwave high-temperature drying oven (4) is connected with an air supplementing system (13) and a hot air circulating system (14); the double-roll crusher (7) is positioned below the middle connecting hopper (6), the microwave low-temperature drying oven (3) and the microwave high-temperature drying oven (4) both adopt conveying belts to convey lithium fluoride, and the lower end of the rack platform (16) is also provided with a control electric cabinet (15).
2. The lithium fluoride microwave drying device of claim 1, wherein: a filter press (21) is arranged above the feeding hopper (1).
3. The lithium fluoride microwave drying device of claim 1, wherein: the conveyor belt of the microwave low-temperature drying oven (3) is a polytetrafluoroethylene belt with skirt edges at two sides, the conveyor belt of the microwave high-temperature drying oven (4) is a polytetrafluoroethylene belt, a steel belt or a high-temperature-resistant non-metal belt with skirt edges at two sides, a heat insulation layer (17) is arranged on the outer wall of the microwave high-temperature drying oven (4), microwave low-temperature drying ovens (3) and the input and output ends of the microwave high-temperature drying ovens (4) are respectively provided with a microwave suppressor, microwave generators are arranged on the oven bodies of the microwave low-temperature drying ovens (3) and the microwave high-temperature drying ovens (4) and are connected with a water circulation system (19), and the microwave generators provide electric energy through a fully-sealed switching power supply.
4. The lithium fluoride microwave drying device of claim 1, wherein: the material receiving bin (18) is a closed bin, cold dry gas is introduced into the bin of the material receiving bin (18) for sealing, and the cold dry gas is air or nitrogen.
5. The lithium fluoride microwave drying device of claim 1, wherein: the left side of the air supplementing system (13) is sequentially connected with a first efficient filter (12), a first electric heater (11) and a heat exchanger (10), and the right side of the hot air circulating system (14) is sequentially connected with a second efficient filter (23) and a second electric heater (24).
6. The lithium fluoride microwave drying device of claim 5, wherein: one end of the heat exchanger (10) is communicated with the moisture exhausting system (5), the output end of the moisture exhausting system (5) is provided with a dust remover (9), and the dust remover (9) is positioned on the outer side of the shield (20).
7. The lithium fluoride microwave drying device of claim 1, wherein: and a ladder stand and a safety barrier are arranged on the rack platform (16).
8. The lithium fluoride microwave drying device of claim 3, wherein: the drying temperature of the microwave low-temperature drying furnace (3) is 80-150 ℃, and the drying temperature of the microwave high-temperature drying furnace (4) is 200-350 ℃; the microwave low-temperature drying oven (3) and the microwave high-temperature drying oven (4) are respectively provided with a plurality of microwave dielectric ceramic plates on two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221586320.6U CN217715828U (en) | 2022-06-23 | 2022-06-23 | Lithium fluoride microwave drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221586320.6U CN217715828U (en) | 2022-06-23 | 2022-06-23 | Lithium fluoride microwave drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217715828U true CN217715828U (en) | 2022-11-01 |
Family
ID=83775090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221586320.6U Active CN217715828U (en) | 2022-06-23 | 2022-06-23 | Lithium fluoride microwave drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217715828U (en) |
-
2022
- 2022-06-23 CN CN202221586320.6U patent/CN217715828U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2170370C (en) | Method and apparatus for continuous drying in superheated steam | |
| KR101960621B1 (en) | Biomass fuel drying method and device thereof using mobile vehicle platform | |
| CN2932256Y (en) | Microwave continuously drying production line | |
| WO2014139136A1 (en) | Method for drying and low-temperature carbonization of lignite by steam heat conduction | |
| CN207721061U (en) | A kind of energy-saving continuous tunnel furnace of food-baking | |
| CN208475913U (en) | Vacuum belt drier | |
| CN201138123Y (en) | Tunnel type multi-layered microwave energy feedback maturing drying apparatus | |
| CN217715828U (en) | Lithium fluoride microwave drying device | |
| CN103598357A (en) | Method and equipment used for circulation drying of tea | |
| CN103629909A (en) | Electromagnetic hot air microwave heating multilayer continuous belt drier | |
| CN108613504A (en) | Workpiece degreasing unit | |
| CN114993021A (en) | Lithium fluoride microwave drying device and method | |
| CN206352832U (en) | A kind of air-cooled slag drying machine | |
| CN208920804U (en) | Tunnel net belt drying oven | |
| CN107376802A (en) | The technique of clean operation in a kind of holding chamber for microwave cracking damaged tire | |
| CN208751227U (en) | A kind of vacuum oven | |
| CN209197402U (en) | A kind of Novel tunnel-type drying oven | |
| CN204006066U (en) | A kind of fine cleaned coal drying system dust treatment plant | |
| CN101907393A (en) | Left and right hot air circulating mesh-belt type roasting furnace adopting fuel for heating | |
| CN107776192A (en) | A kind of printing packaging drying unit | |
| CN106819772A (en) | A kind of tunnel type baking oven | |
| CN205537030U (en) | Mixing rubber microwave drying device of shallow layer wet process | |
| CN212806357U (en) | Catalyst drying device is used in production of HQ phosphate ester fire retardant | |
| CN211099326U (en) | Boiler slag recovery device | |
| CN105627333A (en) | Tunnel-type sludge roasting equipment and process for treating sludge by virtue of same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |